package org.example.ch02.p27;

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int year=sc.nextInt();
        if ((year%4==0 && year%100!=0)||year%400==0){
            System.out.println("yes");
        }else{
            System.out.println("no");
        }
        sc.close();
    }
}
